本文从环境研究工作的实际情况出发,阐述了风脉动数据采集系统的自动控制及应用。
Based on the practical condition of environmental research work, this paper expounds the automatic control and application of the data collecting system for wind fluctuation.
用巴东大桥实测的地脉动数据进行数值积分处理,取得满意的积分效果,说明文中消除趋势项的方法是有效可行的。
The satisfying integral effects for the numerical integral of Badong bridge earth pulsation data show that the proposed method to removal of trends is effective.
对水轮机模型,测取了从直锥段进口至尾水管出口8个截面共26个测点在6个稳定运行工况下的水压力脉动数据。
In the experimental study, the pressure surge data are acquired at 26 points from the taper pipe intake to the draft tube exit distributing at 8 sections under 6 stable operating conditions.
通过水压力脉动数据的FFT频谱分析,研究了直锥段和尾水管内部在不同位置不同工况下的压力脉动在时域及频域上的变化规律。
With the FFT analysis it is analyzed that the pressure surge changing laws in the taper pipe and draft tube in time domain and frequency domain.
同时将所得理论结果和自由射流中关于温度脉动的测量数据进行了比较。
Besides, the theoretical results obtained here are compared with the measured data of temperature fluctuation for free jets.
试验数据表明,在某些特殊工况下,二次风脉动幅度可能高达40%,对火焰稳定性影响较大。
Test Data show that the pulsating amplitude of secondary air can reach 40% under some special conditions, affecting more greatly the flame stability.
通过实验研究,得到了实验压力脉动曲线和实验气泡、气穴现象摄像数据。
The experimental pressure pulsation curve and video data of gas bubbles and cavitation phenomenon are obtained by the experiment.
脉动流速数据的采集到应用,由于各种干扰因素的存在,一般都需要将测量数据进行预处理。
Generally, fluctuating velocity data should be disposed for it was disturbed by a lot of factors during data acquisition.
根据实测数据和计算结果,对坝面隔墙处脉动压力特性进行分析研究。
In accordance with the measured data and the calculated result, the characteristics of the fluctuating pressures on the dam surface partitions are analyzed.
消费脉动的数据可能掩饰了消费者实际上支出更弱的能力,因为当收入仍然低下时,他们用同一时期的做对比。
The figures from SpendingPulse may mask even greater weakness in consumer spending because they are being compared with a period when revenue was still in the dumps.
采用基于BP神经网络整定的PID控制策略以减弱系统的耦合影响,并给出了其控制算法在FPGA上实现的方法,包括脉动阵列算法映射、数据表示及精度和运算部件设计。
A control strategy based on BP-PID was introduced to decouple the looper system by using FPGA, which includeds systolic mapping, data representation and precision, and computation components design.
采用龙格-库塔数值方法计算了气泡脉动半径、周期及水中压力,计算结果与实测数据吻合较好。
The radius period of oscillation of the bubble and the water pressures are calculated numerically with Runge-Kutta method. The calculating results are unanimous with that of experiments.
采用龙格-库塔数值方法计算了气泡脉动半径、周期及水中压力,计算结果与实测数据吻合较好。
The radius period of oscillation of the bubble and the water pressures are calculated numerically with Runge-Kutta method. The calculating results are unanimous with that of experiments.
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